And when you upgrade from one model to another you have to buy everything once again?

Copyright is one thing, copyprotect another. Back in old Technics forum we could see how original
made Technics stuff was spread by "private e-mail" club. Ended bad, as Technote forum closed down
way too early compared to when final Technics keyboard was produced.
All that sudden the SZ Technics forum start grow, but that's another story.

I think copy protection is good, but it most be in a way that you can edit and resave, and still
bring your stuff into your next keyboard as long as it's within the same factorybrand.
The bad thing will be, that my EMC convert software will be worthless .......

We have a say here: Whatever way you turn, your butt will be behind you.

Cheers
GJ